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 $ED0C/60684:   Send LISTEN Command on Serial Bus

Jump from <A HREF="ROMF250.HTM">$F27A</A>, <A HREF="ROMF3D5.HTM">$F3E3</A>, <A HREF="ROMF5FA.HTM">$F60D</A>, <A HREF="ROMF5FA.HTM">$F648</A>, <A HREF="ROMFFB1.HTM">$FFB1</A>:

ED0C: 09 20     <A HREF="BORA.HTM">ORA</A> #$20
ED0E: 20 A4 F0  <A HREF="BJSR.HTM">JSR</A> <A HREF="ROMF0A4.HTM">$F0A4</A>     ; Serial Bus Idle

Jump from <A HREF="ROMEDFE.HTM">$EE00</A>:

ED11: 48        <A HREF="BPHA.HTM">PHA</A>
ED12: 24 94     <A HREF="BBIT.HTM">BIT</A> <A HREF="ZP94.HTM">$94</A>       ; Flag: Serial Bus - Output Character buffered
ED14: 10 0A     <A HREF="BBPL.HTM">BPL</A> $ED20
ED16: 38        <A HREF="BSEC.HTM">SEC</A>
ED17: 66 A3     <A HREF="BROR.HTM">ROR</A> <A HREF="ZPA3.HTM">$A3</A>       ; Serial Bus EOI (End Of Input) Flag
ED19: 20 40 ED  <A HREF="BJSR.HTM">JSR</A> <A HREF="ROMED40.HTM">$ED40</A>     ; Send Data On Serial Bus
ED1C: 46 94     <A HREF="BLSR.HTM">LSR</A> <A HREF="ZP94.HTM">$94</A>       ; Flag: Serial Bus - Output Character buffered
ED1E: 46 A3     <A HREF="BLSR.HTM">LSR</A> <A HREF="ZPA3.HTM">$A3</A>       ; Serial Bus EOI (End Of Input) Flag

Jump from $ED14:

ED20: 68        <A HREF="BPLA.HTM">PLA</A>
ED21: 85 95     <A HREF="BSTA.HTM">STA</A> <A HREF="ZP95.HTM">$95</A>       ; Buffered Character for Serial Bus
ED23: 78        <A HREF="BSEI.HTM">SEI</A>
ED24: 20 97 EE  <A HREF="BJSR.HTM">JSR</A> <A HREF="ROMEE97.HTM">$EE97</A>     ; Serial Output 1
ED27: C9 3F     <A HREF="BCMP.HTM">CMP</A> #$3F
ED29: D0 03     <A HREF="BBNE.HTM">BNE</A> $ED2E
ED2B: 20 85 EE  <A HREF="BJSR.HTM">JSR</A> <A HREF="ROMEE85.HTM">$EE85</A>     ; Serial Clock On

Jump from $ED29:

ED2E: AD 00 DD  <A HREF="BLDA.HTM">LDA</A> <A HREF="CIA20.HTM">$DD00</A>     ; CIA2: Data Port A (Serial Bus, RS232, VIC Base Mem.)
ED31: 09 08     <A HREF="BORA.HTM">ORA</A> #$08
ED33: 8D 00 DD  <A HREF="BSTA.HTM">STA</A> <A HREF="CIA20.HTM">$DD00</A>     ; CIA2: Data Port A (Serial Bus, RS232, VIC Base Mem.)

Jump from <A HREF="ROMEDB9.HTM">$EDBB</A>, <A HREF="ROMEDC7.HTM">$EDC9</A>:

ED36: 78        <A HREF="BSEI.HTM">SEI</A>
ED37: 20 8E EE  <A HREF="BJSR.HTM">JSR</A> <A HREF="ROMEE8E.HTM">$EE8E</A>     ; Serial Clock Off
ED3A: 20 97 EE  <A HREF="BJSR.HTM">JSR</A> <A HREF="ROMEE97.HTM">$EE97</A>     ; Serial Output 1
ED3D: 20 B3 EE  <A HREF="BJSR.HTM">JSR</A> <A HREF="ROMEEB3.HTM">$EEB3</A>     ; Delay 1 ms

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